Monday, May 25, 2009

How Fast Is the Arctic Circle?

How fast is the Arctic Circle?

The speed of the Arctic Circle is 49 ft per year.

The position of the Arctic Circle is not fixed, but directly depends on the Earth's axial tilt, which fluctuates within a margin of 2° over a 40,000 year period, notably due to tidal forces resulting from the orbit of the Moon. The Arctic Circle is currently drifting northwards at a speed of about 15 m (49 ft) per year…

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